Air-compressing apparatus



(No Model.) A. -2 Sheets-Sheet 1.

M. FLOOD. 'AIR GOMPRESSlNG APPARATUS.

No. 519,383. Patented May 8,1894.

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(No Model.) 2 Sheets-Sheet 2.

M. FLOOD. AIR GoMPREssING APPARATUS.

No. 519,383. Patented 1Vfy'8, 1894.

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UNITED STATES PATENT OFFICE.

MATTHEW FLOOD, OF ALBANY, NEW YORK.

AIR-COMPRESSING APPARATUS.

SPECIFICATION forming part of Letters Patent No. 519,383, dated May 8, 1894.

Application filed September 22,1893. Serial No. 486,161. (No model.)

To aZZVwh/om; it may concern,.-

Be it known that I, MATTHEW FLOOD, a citizen of the United States, residing at Albany,

in the county, of Albany, State of New York,

motors, pneumatic tubes, operating hammers,

drills, raising water, and for other purposes for which compressed air is used; and also to provide specific combination of devices and elements `by which my invention may be embodied in air compressing apparatus. I attain these objects by the means illustrated in the accompanying drawings forming a part of this specification, in which- Figure l is a plan view of an air compressing apparatus embodying improvements in my invention. Fig. 2 is an elevation, partly in section, taken at line l-l in Fig. l, Fig.

' 3 is a view at the primary compressor side of the apparatus. Fig. 4. is a view of the opposite side of the apparatus.

The same letters of reference refer to similar parts throughout the several views.

In the drawings A represents the primary air compressor consisting of the cylinder A', which may be supported by any suitable means, and preferably by means of trunnions a a', secured to the cylinder A', and working in bearings b b mounted on a suitable frame B. There is providedin the chamber of the cylinder A', about at the middle of its length, the air receiving chamber O which is formed between the horizontal vdiaphragms C' O2, which are securely fixed from moving within said cylinder by any suitable bolts, rivets or other known means. This air receiving chamber is central between the pump chambers D D', and the outer ends of these pump chambers are closed by heads .D2 and D3. Within the `venient power. A nanism is shown to consist of the driving pinpump chambers D and D' are the pistons E E', suitably secured to the piston rod E2, with piston E working within the pump chamber D, and piston E" working within the pump chamber D'. Suitable openings, provided with valves, for inlet of air into the respective pump chambers are provided; which inlet openings are preferably made in the said heads, and the valves may be of any suitable known construction. In the drawings d is an inlet opening provided in the head D2, and leading to the pump chamber D, and is provided-With valve d working inwardly; and in vthe opposite end head D3 is an air inlet opening d2, leading to the'pump chamber D', and

provided with valve d5, which also opens inwardly. The piston E working within the pump chamber D' is provided with an air intake opening e, provided with valve e opening toward the air receiving chamber C; andpiston E' working within pump chamber D', is provided with intake opening e2, provided with valve es also opening toward thesaid air receiving chamber C. l The diaphragme O' C2 are respectively provided with intake openings as c and c, each provided with a suitable valve as c', c2.

F is the air outletfrom the air receiving chamber C, of the primary air compressor A, which outlet, when the said compressor is supported by trunnions, maybe made through one of the trunnions, as trunnion a, and be connected With a lsuitable compressed air receiver, by a conduit F' having a suitable check valve f provided in the course of the said` pipe. The pumps of this primary-air ycompressor may be operated by any suitable mechanism actuated by' any known and con- In the drawings the mechion G driving gear G',l which actuates a gear G2to which is connected the crank G3,.for`actuating the piston rod E2 to which the pistons E E are secured. These several gears are suitably mounted on shafts which revolve in suitable bearings, secured to the frame work B', which is preferably secured to frame B. The pinion G may be revolved by a vband wheel g, driven by any suitable power such as steam, water or electricity, or animal power, by means of a belt not shown, or it may be re- IOO volved by the handle g secured to wheel g and operating'as a crank handle for revolv-` ing the same.

H is the compressed air receiver preferably made in the form of a cylindrical vessel which is suitably supported, and is connected with the air receiving chamber C, of the primary air compressor A, by a pipe F which is connected with the trunnion a and made air` tight, in its joint with said trunnion, by studing box h and gland h2. The check valve f is provided, in the course of the pipe F', for preventing back pressure of the air in the receiver H, into the air receiving chamber C." This receiver H is Apreferably provided with a suitable pressure gage H2, for indicating the pressure of the air in the said receiver."

One ormore super com pressed airreceivers may be provided for receiving, storing at will, and supplying air, under great pressure, through a suitable discharge pipe or pipes, to to be used in-various operations such as for driving air motors, hammers, drills, operatin g pneumatictubes, raising water, and for other purposes. The drawings show two such super compressed air receivers I, I suitably connected, each by means of a suitable pipe fi, with the compressed air receiver H. In the course of these pipes i z', there is provided in each a suitable air force pump J J, preferably of any well known rotary positive force'kind with which the public is familiar. These pumpsare suitably supported in place, prefer-` ably at the sides of the receiver l--I by suitable brackets K K, and may be operated by a band pulley lc secured to a shaft of one of the revolving pistons, and driven by a band 7o from any suitable driving band wheel not shown. These super compressed air receivers I I may be located at any desired distance from the air receiver H, and when two or moreof said receivers I are used, they may be variously located as the location of the operations Ato be had, may require. IVhen two or more of these super compressed air receivers are used, they may be `connected by suitable pipes L connecting with a y or T form coupling as l, and be provided with suitable valves Z Z', so that at will the air may be discharged from the two or more receivers I I for operation with the devices or mechanism, not shown, inf` tended to be had. Other pipes as M, provided with valves m, may be employed for conducting streams of compressed air, from the super compressed air receivers I I, to near or remote places for operating mechanism orde-` of the said chamber I,1ire from burning'fuel` of any kind, or steam in coils arranged with-` in said chamber may be employed. In the` drawings, Fig. 4, there is shown a steam chamber N, situatedbelow the chamber I of the super compressed air receiver, and separated therefrom bythe plate N and steam maybe supplied to chamber N by any suitable steam pipe n communicating with a steam generator, not shown; and any suitable well known steam trap, not shown, may be' employed for carrying off the condensed vapors from said steam chamber as may be required.`

When steamis employed for heating the air in the air chamber I, a pressure gage, not shown, maybe connected with said air chamber, and another, not shown, with the steam chamber.

The manner in which the above described apparatus operates is asfollows: The piston rod of the air compressor A being operated by the mechanism provided for that purpose, will impart to the pistons E E a reciprocating motion, and when moving in direction from the upper end head of the cylinder A', the valve d in head D2 will open so that air from the outside may have free passage into thepump chamber above thepiston E, while the valve d3 will beclosed against the opening d2 in the lower head D3, the valve e3 in the lower piston E will open Afor admitting air into `pump chamber D. As the piston E is being moved toward the chamber C, the valve e will close the opening c in said piston, while the force of the inflowing air will open valve c of opening c, and close the valve c2 of opening c in the diaphragm C2.` By a reverse movement of the said pistons, reversed actions of the said valves d d3 e e3 c c2 will be had, and `under this continued reciprocating movement of the said pistons E E', air will be drawn from the outside of the cylinder A and forced within the chamber C, and be thence discharged, through pipe F, into the receiver H, and fromthence be drawn in its compressed condition and be discharged into the super compressed air receivers I, by the force of the pump J J, and be heated when within said receivers by means provided for increasing the pressure of theair witl1in,un til discharged atwill from the same through the pipes provided, for the uses to' which they maybe applied.

Having described my invention, what I claim, and desire to secure by Letters Patent, 1s

1. In an air compressing apparatus, the Acombination with a compressed air receiver, and a primaryair compressor supported on trunnionsl one of which is tubular, Aa pipe connecting said tubular trunnion with said "receiver, a stuffing b oX and gland making ,'a 1tight joint between the said trunnion'and `the said pipe, an air check valve in the course of thesaid pipe, and mechanism for operating the said primary air compressorysubstantially as and for the purposes set forth.

2. In `an air compressing apparatus, the combination with a compressedair receiver, of a series of super compressed air receivers, pipes corresponding in number with the num- IOO IIC

ber of said super compressed air receivers and communicating from said compressed air receiver to the respective super compressed air receivers to be supplied with compressed air, an air force pump in the course of each said pipe, pipes for connection of the one@ the other of the latter receivers, valves, under control of an operator, in the course of said connecting pipes, and a discharge pipe from the said connecting pipes, substantially as ro and for the ,purposes set forth.

In testimony that I claim the invention above set forth I affix my signature in presence of two Witnesses.

l MATTHEW FLOOD. Witnesses:

GEORGE FLooD, JOHN CosGRovE. 

